🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.42 AU - 0.62 AU

Year: 136 Days

Day: 12.8 Hours

Environment

Temp: 249 °C

Axial Tilt: 21.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.47 AU - 0.59 AU

Year: 140 Days

Day: 26.9 Hours

Environment

Temp: 244 °C

Axial Tilt: 12.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.91 AU - 1.39 AU

Year: 446 Days

Day: 23.7 Hours

Environment

Temp: 24 °C

Axial Tilt: 13.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.26 AU - 2.04 AU

Year: 767 Days

Day: 22.3 Hours

Environment

Temp: -35 °C

Axial Tilt: 8.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.33 AU - 2.65 AU

Year: 1421 Days

Day: 43.2 Hours

Environment

Temp: -88 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,426,554 km

• M1: 149,747 km (0.072 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.92 AU - 2.96 AU

Year: 1823 Days

Day: 30.8 Hours

Environment

Temp: -89 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,426,554 km

• M1: 27,077 km (0.032 R)

Asteroid Belt

Center: 5.12 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.5

Radius: 10.9

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.92 AU - 8.68 AU

Year: 7133 Days

Day: 6.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,426,554 km

• M1: 136,134 km (0.047 R)
• M2: 1,463,965 km (0.11 R)
• M3: 2,375,913 km (0.058 R)
• M4: 2,868,838 km (0.119 R)
• M5: 4,659,525 km (0.12 R)
• M6: 6,163,582 km (0.101 R)
• M7: 7,099,167 km (0.061 R)
• M8: 9,035,412 km (0.113 R)
• M9: 9,873,459 km (0.069 R)
• M10: 13,356,696 km (0.114 R)
• M11: 16,663,408 km (0.064 R)
• M12: 20,037,737 km (0.085 R)
• M13: 21,614,200 km (0.086 R)
• M14: 22,079,449 km (0.066 R)
• M15: 25,611,604 km (0.111 R)
• M16: 31,342,848 km (0.088 R)
• M17: 35,462,175 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.9

Radius: 15

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 11.88 AU - 12.92 AU

Year: 15791 Days

Day: 13.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,426,554 km

• M1: 197,170 km (0.108 R)
• M2: 1,028,336 km (0.088 R)
• M3: 1,803,402 km (0.101 R)
• M4: 5,315,063 km (0.082 R)
• M5: 6,081,602 km (0.053 R)
• M6: 7,026,762 km (0.104 R)
• M7: 8,224,741 km (0.072 R)
• M8: 8,914,537 km (0.034 R)
• M9: 10,596,765 km (0.107 R)
• M10: 11,414,467 km (0.057 R)
• M11: 12,273,907 km (0.117 R)
• M12: 13,230,436 km (0.065 R)
• M13: 14,524,607 km (0.11 R)
• M14: 18,365,083 km (0.068 R)
• M15: 24,530,610 km (0.097 R)
• M16: 27,359,955 km (0.074 R)

Kuiper Belt

Range: 30.3 - 46.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 19,363 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit